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What element has no stable isotopes?
hydrogen
Is Helium the first element on the periodic table and the most stable element in the universe?
False (Hydrogen has the first position, Helium is the most stable)
What is the lightest element on the periodic table with no stable isotopes?
The lightest element on the periodic table with no stable isotopes is hydrogen. It only has one proton in its nucleus and no stable isotopes.
What element that has no stable isotopes?
Technetium (Tc) is the element that has no stable isotopes. All of its isotopes are radioactive with half-lives ranging from minutes to millions of years.
Is hydrogen a stable gas?
Hydrogen gas is stable under certain conditions but can be reactive under others. It is flammable and can ignite in the presence of oxygen. In its elemental form, hydrogen is colorless, odorless, and tasteless.
How are molecules of an element and a compound different?
Hydrogen symbol : H , and atomic number : 1 is an element . Whereas H2 is the hydrogen compound . The element may not be stable but molecule are always stable . When we see the molecular structure of hydrogen element , the outer most valence shell has one electron , which means hydrogen needs one more electron to fulfill its duplet . When the octate and duplet are fulfilled they are stable . In compound various element and molecules , bond to complete each others octate or duplet . Compound have certain bond . Eg electrovalent bond and covalent bond .
What two elements are in hydrogen?
There is only one element in hydrogen it's hydrogen. It's the first element in the periodic table of elements.
Deuterium is an element with one proton and one neutron Deuterium is called an?
It is also known as heavy hydrogen. Its nucleus is called a deuteron. The relative isotopic mass of the element is 2.01410178 u. Its a stable element and has a natural abundance of 0.015%.
What is the element with the least atomic mass is hydrogen or helium?
Hydrogen's atomic mass (1 amu for the most stable isotope) is less than that of helium (4 amu).
Which element is not placed into a group because of its unqiue properties?
HYDROGEN because it can donate or receive an electron in order to be as stable as Halogens
Is a Hydrogen a element or a compound?
it's an element!
What are the elements in hydrogen?
Hydrogen is an element. So the only element in hydrogen is hydrogen.
